Wheel-hub.



G. W. GROOMS.

f WHEEL HUB.

OATIOH FILED MAY 6, 1909.

Patented Feb. 22, 1916.

I L P Q 9&9,928

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' To all whom 'it may concm:

UNITED s'rArEs PATENT .oEInyoE*.gi

l WHEEL-HUB.

Be it known that I, GEORGE W. GRooMs, a citizen of the United States, residing at Ottumwa, in the county of Wapello and State of Iowa, have invented certain new and useful Im rovements in Wheel-Hubs, of lwhich the ollowing is a specication, reference being vhad to the accompanying drawings.

lThis invent-ion relates to improvements in wheel hubs' and more particularlyanti-friction bearings for the hubs of Wheels of all kindsl but especially those used on mine and tram cars, railway trucks, farming implements, wheeledvehicles, etc.

The object of the inventi'on is to provide;

a sim le and comparatively inexpensive anti-friction wheel which will "be exceedingly strong and durable 'and the wear upon which may be taken up from time to time so as to cause it to run true and with little or. no friction.

VVi'th the-above and other objects in View, the invention consists in/the novel construction and the combination and arrangement of parts hereinafter fully described and claimed, and illustrated in the accompanying drawings, in-'which- A Figure 1 is a' sectional View through the improved wheel hub; and Fig. 2 is a section taken in a plane at right angles to that of Fig. 1,v the plane of the section being indicated by the line 2-2 in Fig. 1.

In the drawings l denotes an axle having at one of its ends a reduced screw threaded portion 2 and at a suitable distance from4 said end a shoulder formed by a collar or flange 3. l

4 denotes a cylindrical sleeve arranged on the axle l and having one end engaged with said stop shoulder 3 and also formed with an annular radially projecting flange 5, in the inner face of which and adjacent to its outer edge is an annular groove or raceway 6. l

7 denotes acircular plate or cap having a central openin 8 to receive the. reduced end or'stem 2 o the axle and also having 4formed in its inner face concentric With the opening 8 a circular cavity 9 into which the outer end of the sleeve 4 projects. SaidY cap 7 has also formed inits inner face adjacent its-outer edge van annular groove or raceway 10.

v11 denotes a plurality of Washers ar- Specication'of Letters latent. Patentd l (ab.l lApplication led May 6, 1909i Serial 170.494,360. l "l, I

ranged in the cavity 9 of the cap 7 to space the latter from the sleeve 4', and 12 denotes a nutengaged with the threaded extremity of the' reduced portion or stem 2 of the axle and adapted to clamp the cap 7 and sleeve 4 rigidly` upon the axle.

13 denotes a rotarv member which forms I the hub of the Wheel. 'Said member 13 is annular in form having a central circular opening 14 of greater diameter than the sleeve 4 so that an annular series of antifriction rollers 15 may be arranged between its central portion and the exterior of the sleeve 4. Said member 13 is also formed in its side faces with circular recesses 16 to receive the flange 5 and cap 7 and m the bottom of each of the recesses 16 is an annular groove or raceway 17 The raceways 17 oppose the raceways 6, 10 in the flange 5 and cap 7 and said opposing raceways are adapted to receive annular series-of bearing balls 18.

When the parts are assembled, as shown in Fig. 1, itwill be seen that the washers 11 space the cap 7 from the flange 5 so that the anti-friction rollers 15 and bearing balls 1,8 will support the hub memberv 13 for ro tary movement within the other parts of the wheel. The rollers 15 will permit the wheel to run with little or no friction and the two rows of balls 1.8 will reduce the'side friction or strain. lVhen the parts of the device wear, one or more of the washers 11 may be removed land the' cap adjusted inwardly on the axle so as to compensate for such wear.

From the foregoing it will be seen that the invention provides an exceedingly simple and practical bearing for a wheel or roller which may be produced at a small cost and will be exceedingly strong and inexpensive in construction and durable in use. Furthermore, itvwill be light running or free from friction and wear upon its parts may be quickly taken up.

Having thus described the invention what is claimed is:

The combination of an axle having a stop shoulder and a screw threaded portion, a cylindrical sleeve upon the axle and having its inner end engaged with said shoulder, an annular ange'carried by the inner end of the sleeve, a ca arranged on the outer end of the axle and aving. a cavity to receive the outer end of lthe sleeve, Washers interposed andlaic1-lou'erendpf the-1eeve,, nut upon ofthe rotarygmemb'er and the inner faces 10 itheprojectn "threaded endof, the andereJ 'of the ange and cap.

rotary," r Inem er projecting between 'the- Intestimony whereof I hereunto aix my flange and capand having itslpposingside's Signature in' the presence of two witnesses. recessed to. receive-the f same, an annular row' rtay' .fmembery projecting Vbetween the GEORGE W GROOMS .canin-a1V 'portion'of the rotaryjfmember and Witnesses: the$,1eeye,' and annular rows of aynisi-frfie-l CLABENCE L. LEE,

tionbearing' balls'` betweenthe oppqsite sides -RALBH H. MQELRQY. 

